planning to fly sometime soony why the faa says today is the first day travelers will really feel the effects. >>> we'll get to the latest on the boston investigation in a moment. >>> first developing news overnight in washington state. at least five people were killed by gunfire at an apartment building in a suburb south of seattle. among the dead a suspect who was shot by police officers on the scene. another two bodies found in the parking lot and two more bodies were found inside the building. we'll bring you the updates on this latest gun tragedy as we get them. >>> bells will ring at 2:50 to mark one week since the deadly marathon bombings struck and according to investigators the lone surviving suspect, dzhokhar tsarnaev, is responding to questioning. under heavy guard in the hospital he is undergoing brief rounds of interrogation apparently responding by writing his answers. the 19-year-old was shot through the neck in what some have speculated may have been a suicide attempt. despite largely republican calls to have him held as an enemy combatant, he could face federal charge